Oil-feeder.



PATENTED SEPT. 13, 1904;

J. W. KIRSHMAN.

OIL FEEDER.

APPLICATION FILED MAR. a. 1904.

2 SHEETS-SHEET 1.

N0 MODEL.

w W Eli vzm) WWW, EQWJ W WWW No. 770,077. PATENTED SEPT. 13, 1904. J. W.KIRSHMAN.

OIL FEEDER.

APPLICATION FILED MAR. 81 1904.

N0 MODEL 2 SHEETS-SHEET 2.

UNTTED STATES Patented September 13, 1904:.

JOHN W. KIRSH MAN, OF CALIFORNIA, MISSOURI.

OIL-FEEDER.

SPECIFICATION forming part of Letters Patent N0. 770,077, datedSeptember 13, 1904,

Application filed arc 8, 1904. Serial No. 197,194. (No model.)

T0 at whom it may concern.-

Be it known that 1, JOHN W. KIRsHMAN, a, citizen of the United States,residing at California, Moniteau county, State of Missouri, haveinvented certain new and useful Improvements in Oil- Feeders, of whichthe following is a specification containing a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates to oil-feeders; and it consists of the novelfeatures herein shown, described, and claimed.

In the drawings, Figure 1 is a View in elevation showing my improvedoil-feeder in position for use on the cylinder of a Corliss engine. Fig.2 is a horizontal section of the oil-feeder, on an enlarged scale, onthe line 2 2 of Fig. 3 and looking downwardly. Fig. 3 is a verticalcentral section on the line 3 3 of Fig. 2 and looking in the directionindicated by the arrow. Fig. Ais a cross-section on the line 4: 4 ofFig. 3 and looking in thedirection indicated by the arrow.

Referring to the drawings in detail, the Corliss-engine cylinder 5 has asteam-supply pipe 6, and the oil-feeder 7 is connected to thesupply-pipe by the discharge-pipe 8. The pumpplunger casing 9 extendsdownwardly from the oil-receptacle 10, the bore 11 of the casing beinghorizontal and there being a passage 12 connecting the plunger-casing ata point intermediate of its ends to the oil-receptacle. The pump-plunger13 is mounted in the bore 11, there being a stufiing-box 1 1 at theouter end of the plunger and there being a packingring 15 at the innerend of the plunger, so that oil in the receptacle 10 will pass throughthe opening 12 to the intermediate part of the plunger, so as to form anoil-packing around the plunger. An air-passage 16 leads through theinner end of the plunger, and said airpassage is controlled by thecheck-valve 17. A check-valve 18 controls the passage of air to the pumpair-chamber 19. A lug 20 extends from the oil-receptacle 10, and anoperating-arm 21 is connected to the pump-plunger 13 by the pin 22,operating in the slot 23, and the lower end of said arm 21 is connectedto the valve-shifting rod 2 1 by the sleeve 25, mounted upon theshifting-rod and having the pin 26 sliding in the slot 27.

An adjustable check-valve 28 controls the passage 29, leading from theair-chamber 30, said valve being adjusted by the perforated nut 31,regulating the pressure of the spring 32 upon the valve 28. Theoil-receptacle 10 is provided with an air-tight filling-cap 33.

As the pump-plunger is operated by the reciprocation of theValve-shifting rod air is forced into the oil-receptacle through theoil, so that the oil forms a trap to prevent the air from leakingbackward through the pump. The air-pressure in the air-chamber willovercome the steam-pressure in the discharge-pipe, and the air-pressurewill force the oil through the discharge-pipe into the steam-pipe. Theadjustable check-valve will prevent the accumulation of too muchpressure on the oil.

I claim 1. An oil-feeder comprising a suitable oilreceptacle having anoil-outlet; a pump-casing below the oil-receptacle; a pump-plunger insaid casing and packed at both ends; the oilreceptacle communicatingwith the plunger at a point between its ends, and there being anair-passage through the plunger to the oil-receptacle; and check-valvescontrolling said airpassage.

2. An oil-feeder comprising a suitable oilreceptacle having anoil-outlet; a pump-casing below the oil-receptacle; a pump-plunger insaid casing and packed at both ends; the oilreceptacle communicatingwith the plunger at a point between its ends, and there being anair-passage through the plunger to the oil-receptacle; check-valvescontrolling said airpassage; and an adjustable cheek-valve leading fromthe compressed-air chamber to limit the air-pressure. I

3. An oil-feeder comprising a suitable oilreceptacle having anoil-outlet; a pump-casing below the oil-receptacle; a pump-plunger insaid casing and packed at both ends; the oil-receptacle communicatingwith the plunger at a point between its ends, and there being anair-passage through the plunger to the oil-receptacle; the discharge endof said air-passage tacle; the discharge end of said air-passage beingsubmerged in the oil; and check-valves controlling the air-passages;substantially as specified.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

JOHN W. KIRSHMAN.

Witnesses:

J. G. TEALL, A. H. WEMPLE.

